(function($) {
	
	keybEdit=function(strValid) {
		//	Variables
		/*var reWork = new RegExp('[a-z]','gi');		//	Regular expression\
	
		//	Properties
		if(reWork.test(strValid)) {
			this.valid = strValid.toLowerCase() + strValid.toUpperCase();
		}
		else {
			this.valid = strValid;
		}*/
		this.valid = strValid.toLowerCase() + strValid.toUpperCase();
		
		//	Methods
		this.getValid = keybEditGetValid;
	
		function keybEditGetValid() {
			return this.valid.toString();
		}
	}
	
	//Main Method
	$.fn.inputmask = function(strValid,invers) {
		
		var objKeyb=new keybEdit(strValid);
		var esInvers=invers;
		
		return this.each(
			function(){		
				var input=$(this);
				
				input.focus(function(){
					checkInput();
					input.select();
				});

				input.blur(function(){					
					checkInput();
				});


				input.keypress(function(e){
					//Part 0: obte la tecla pitjada
					if (window.event) {
					   tecla= window.event.keyCode;
					}
					else if (e) {
					   tecla= e.which;
					}
					else {
					   return true;
					}
					
					// control keys
					if ( tecla==null || tecla==0 || tecla==8 || tecla==9 || tecla==13 || tecla==27 ) return true;
				
					keychar = String.fromCharCode(tecla);
					//keychar = keychar.toLowerCase();
				
					return checkKeyChar(keychar);					
				});

				//Internal Helpers
				function checkKeyChar (keychar) {
					strWork = objKeyb.getValid();
				
					// Part 1: Validate input
					//strWork = strWork.toLowerCase();
						
					// check goodkeys
					if (esInvers) {
						if (strWork.indexOf(keychar) != -1)	return false;
						else return true;
					}
					else {
						if (strWork.indexOf(keychar) != -1)	return true;
					}
				   
					//else return false
					return false;
				}
				
				function checkInput()
				{
					if (input==null) return;
					val=input.val();
					
					if(val==null) return;
					
					sbo="";
					for(var i=0;i<val.length;i++)
					{
						chr=val.substring(i,i+1);
						esOK=checkKeyChar(chr);
						
						if(esOK) sbo=sbo+chr;
					}
					
					input.val(sbo);
				}
			}
		);		
	};
})(jQuery);

(function($) {
	//Helper Functions for Caret positioning
	getCaretPosition=function(ctl){
		var res = {begin: 0, end: 0 };
		if (ctl.setSelectionRange){
			res.begin = ctl.selectionStart;
			res.end = ctl.selectionEnd;
		}else if (document.selection && document.selection.createRange){
			var range = document.selection.createRange();
			var rTemp = range.duplicate();
			res.begin = 0 - rTemp.moveStart('character', -100000);
			res.end = res.begin + range.text.length;
		}
		return res;
	}

	setCaretPosition=function(ctl, pos){
		if(ctl.setSelectionRange){
			ctl.focus();
			ctl.setSelectionRange(pos,pos);
		}else if (ctl.createTextRange){
			var range = ctl.createTextRange();
			range.collapse(true);
			range.moveEnd('character', pos);
			range.moveStart('character', pos);
			range.select();
		}
	}
	
	
	//Main Method
	$.fn.maskedinput = function(mask,placeholder) {		

		if(!placeholder)
			placeholder="_";

		//Build Regex for format validation
		//This Regex could be seriously optimized
		var reString="^";	
		for(var i=0;i<mask.length;i++){
			if(mask.charAt(i)=='9')
				reString+="[0-9]";			
			else if(mask.charAt(i)=='a')
				reString+="[A-Za-z]";
			else if(mask.charAt(i)=='*')
				reString+="[A-Za-z0-9]";
			else
				reString+="\\"+mask.charAt(i);
		}
		reString+="$";
		var re = new RegExp(reString);


		return this.each(
			function(){		
				var input=$(this);
				var buffer=new Array(mask.length);
				var locked=new Array(mask.length);		

				//Build mask
				for(var i=0;i<mask.length;i++){
					if(mask.charAt(i)!='9' && mask.charAt(i)!='a' && mask.charAt(i)!='*'){
						buffer[i]=mask.charAt(i);
						locked[i]=true;
					}else{
						buffer[i]=placeholder;
						locked[i]=false;
					}					
				}

				input.focus(function(){
					checkVal();
					setCaretPosition(this,0);		
				});

				input.blur(function(){					
					checkVal();
				});


				input.keypress(function(e){
					var k;
					if (!e) var e = window.event;
					if (e.keyCode) k = e.keyCode;
					else if (e.which) k = e.which;


					var pos=getCaretPosition(this);
					var caretPos=pos.begin;	

					if((pos.begin-pos.end)!=0){//delete selection before proceeding
						for(var i=pos.begin;i<=pos.end;i++){
						if(!locked[i])
							buffer[i]=placeholder;
						}
					}

					if(e.ctrlKey || e.altKey){//Ignore
						return true;
					}else if(k==8){//backspace										
						while(caretPos-->0){
							if(!locked[caretPos]){
								buffer[caretPos]=placeholder;
								break;
							}
						}					
					}else if(k==46){//delete						
						for(var i=pos.begin;i<=pos.end;i++){
							if(!locked[i])
								buffer[i]=placeholder;
						}					
					}else if ((k>=41 && k<=122) ||k==32 || k>186){//typeable characters
						while(pos.begin<mask.length){			
							var maskChar=mask.charAt(pos.begin);
							var match;
							if(maskChar=='9')
								match=String.fromCharCode(k).match(/[0-9]/);//digit
							else if(maskChar=='a')
								match=String.fromCharCode(k).match(/[A-Za-z]/);//alpha
							else if(maskChar=='*')
								match=String.fromCharCode(k).match(/[A-Za-z0-9]/);//alphanumeric
							else{//we're on a mask char, go forward and try again
								pos.begin+=1;
								pos.end=pos.begin;
								caretPos+=1;
								continue;
							}


							if(match)
								buffer[pos.begin]=String.fromCharCode(k);
							else
								return false;//reject char

							while(++caretPos<mask.length){//seek forward to next typable position
								if(!locked[caretPos]){							
									break;
								}
							}
							break;
						}
					}else
						return true;

					writeBuffer();
					setCaretPosition(this,caretPos);
					return false;				
				});

				//Internal Helpers
				function writeBuffer(){
					var s="";
					for(var i=0;i<mask.length;i++)
						s+=buffer[i];
					input.val(s);
				}
				
				function checkVal(){
					if(!input.val().match(re)){
						input.val("");									
						for(var i=0;i<mask.length;i++){
							if(!locked[i])
								buffer[i]=placeholder;
						}
					}					
				}
			}
		);
	};
})(jQuery);